On 09/26/2011 09:40 AM, Chris Friesen wrote: > On 09/26/2011 10:04 AM, Alexander Duyck wrote: > >> It sounds like you are using a single card, would that be correct? If >> you are running close to line rate on both ports this could be causing >> you to saturate the PCIe x8 link. > > According to > "http://communities.intel.com/community/wired/blog/2009/06/08/understanding-pci-express-bandwidth"; > 8x PCIe should have a bandwidth of 4GB/s. 2 10Gigabit ports is 2.5GB/s. > > The 82599 only goes up to 8x, so I'd expect that it should be sufficient > to handle the full traffic. > > To any of the Intel guys out there...any ideas? Can an 82599 on an 8x > bus handle max line rate with minimum size packets?
Rick Jones sent me an interesting link related to this. Short answer seems to be 'yes', but it seems not for any normal off-the-shelf software stack. > This: http://comments.gmane.org/gmane.linux.network/203602 should lead you > to some slide. Thanks, Ben -- Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
